Crestron Lighting Design Guia de Instalação descarregar pdf (Página 8)

230 V Lighting Design Guide

Doc. 4859C | crestron.com

Design Requirements

Applied Control Strategies

The applied lighting control strategy determines the basic methods used to control the environment. When

formulating an overall strategy there are some basic considerations:

• Light level control is achieved through dimming controls and daylight controls, where applicable, to adjust

the lighting to the appropriate level for different occupant activities.

• Occupancy sensing is used to switch the lighting on and off independent of time intervals or scheduled

periods. This allows the space to be responsive to individual use and conserves energy.

• Scheduled lighting is determined by time of day, day of week, vacation, outdoor lighting, and safety lighting

requirements. An astronomical clock (programmed with sunrise and sunset information) is often used to

provide natural lighting transitions.

• In commercial applications, load shedding, or reducing a facility’s lighting load to achieve an overall

reduction in demand at peak usage times, provides a considerable economic beneﬁt by minimizing load

demand charges.

• Daylighting management systems have some of the most complex energy requirements. These systems

take input from light level sensors, occupancy sensors, and solar angle tracking software to control the

position of motorized blinds, skylights, and window shades, optimizing the use of natural lighting and

reducing consumption of electric lighting.

• HVAC control should also be part of the overall control strategy, permitting additional economic, and

convenience beneﬁts.

Static and Dynamic Elements

The ﬁrst step in implementing the lighting design is to deﬁne the building envelope, electric lighting, façade

features, and other static elements that affect lighting. Window placement and glazing, ﬂoor layout, building

orientation, and ﬁxture placement are all static elements that deﬁne the building space and lighting environment.

Crestron control is required for dynamic elements (the elements that change in response to environmental and

human variables). These static and dynamic elements are fully integrated in a complete lighting design.

New and Existing Construction

Crestron offers design solutions for every situation. Selecting the proper equipment often depends on the kind of

installation. New construction, major renovation, or minor renovation each present different challenges:

• New construction and major renovations provide the opportunity to easily run communication and control

cables from user interfaces to the control processor when the walls are open.

• Existing construction or minor renovation may make the task of running cables more difﬁcult, time

consuming, expensive, or even impossible (in historic landmarks, etc.). In this case, the customer may

choose to install a partial or completely wireless system.

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